Denon-PMA1520AE-int-sm维修电路图 手册.pdf

MODELJPE3E2EKEAE1CE1K PMA-1520AEPP INTEGRATED AMPLIFIER Ver. 5 Please use this service manual with referring to the operating instructions without fail. Some illustrations using in this service manual are slightly different from the actual set. For purposes of improvement, specifications and design are subject to change without notice. Please refer to the MODIFICATION NOTICE.e SERVICE MANUAL e RadioFans.CN ABOUT THIS MANUAL .3 What you can do with this manual .3 Using Adobe Reader (Windows version) .4 SAFETY PRECAUTIONS .6 NOTE FOR SCHEMATIC DIAGRAM .7 NOTE FOR PARTS LIST .7 TECHNICAL SPECIFICATIONS .9 DIMENSION .9 DISASSEMBLY .10 1. FRONT PANEL ASSY .11 2. POWER AMP PWB .12 3. INPUT PWB .12 4. U-COM PWB .13 5. REC INPUT PWB .13 6. TRANS .13 ADJUSTMENT .14 IDLING CURRENT ALIGNMENT .14 TROUBLE SHOOTING .15 1. The power can not be turned on. (Power indication LED does not light.） .15 2. The power turned on, but a sound does not output normally. (Both channels) .15 LEVEL DIAGRAM .17 POWER DIAGRAM .18 WIRING DIAGRAM .19 PRINTED WIRING BOARDS .20 SCHEMATIC DIAGRAMS (1/3) .24 SCH01_AMP_POWER_FRONT .24 SCH02_INPUT_TONE .25 SCH03_U-COM_FUNCTION .26 EXPLODED VIEW .27 PACKING VIEW .29 SEMICONDUCTORS .30 1. ICs .30 目次CONTENTS 2 RadioFans.CN Jump to the target of a schematic diagram connector Click the Ref. No. of the target connector in the red box around a schematic diagram connector. The screen jumps to the target connector. Pagemagnificationstaysthesameasbeforethe jump. ABOUT THIS MANUAL Read the following information before using the service manual. What you can do with this manual Search for a Ref. No. (phrase) (Ctrl+Shift+F) You can use the search function in Acrobat Reader to search for a Ref. No. in schematic diagrams, printed wiring board diagrams, block diagrams, and parts lists. 1.Press Ctrl+Shift+Fonthekeyboard. The Search window appears. 2.EntertheRef.No.youwanttosearchforinthe Search window, and then click the Search button. A list of search results appears. 3.Click an item on the list. The screen jumps to the page for that item, and the searchphraseisdisplayed. Ctrl Shift F 3 RadioFans.CN Using Adobe Reader (Windows version) Properties Click this button and check that the printer is set to a suitable paper size. Page to print Select the following checkbox. More Options : Current View Page Sizing & Handling Select the following checkbox. Size / Size Options : Fit Add notes to this data (Sign) TheSignfunctionletsyouaddnotestothedatain this manual. Savethefileonceyouhavefinishedaddingnotes. Example using Adobe Reader X On the View menu, click Sign. The Sign pane appears. Example using Adobe Reader 9 On the Document menu, click Sign. Magnify schematic / printed wiring board diagrams - 1 (Ctrl+Space, mouse operation) Press Ctrl+Spaceonthekeyboardanddragthe mousetoselecttheareayouwanttoview. Theselectedareaismagnified. Whenyouwanttomovetheareashown,hold down Space and drag the mouse. Whenyouwanttoshowafullpageview,press Ctrl+0onthekeyboard. CtrlSpace 0 Print a magnified part of the manual ThePropertiesdialogboxandfunctionswillvarydependingonyourprinter. 1. Dragthemousetomagnifythepartyouwanttoprint. 2. On the File menu, click Print. 3. ConfigurethefollowingsettingsinthePrintdialogbox. 4. Click the Print button to start printing. 4 RadioFans.CN Magnify schematic / printed wiring board diagrams - 2 (Pan & Zoom function) ThePan&Zoomfunctionletsyouseewhichpartof amagnifieddiagramisbeingshowninaseparate window. Example using Adobe Reader X On the View menu, point to Zoom, and then click Pan & Zoom. The Pan & Zoom window appears on the screen. Example using Adobe Reader 9 On the Tools menu, point to Select & Zoom, and then click Pan & Zoom Window. Magnify schematic / printed wiring board diagrams - 3 (Loupe Tool function) TheLoupeToolfunctionletsyoumagnifyaspecific part of a diagram in a separate window. Example using Adobe Reader X On the View menu, point to Zoom, and then click Loupe Tool. The Loupe Tool window appears on the screen. Example using Adobe Reader 9 On the Tools menu, point to Select & Zoom, and then click Loupe Tool Window. 5 RadioFans.CN SAFETY PRECAUTIONS The following items should be checked for continued protection of the customer and the service technician. leakage current check Beforereturningthesettothecustomer,besuretocarryouteither(1)aleakagecurrentcheckor(2)alinetochassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the set is defective. Be sure to test for leakage current with the AC plug in both polarities, in addition, when the sets power is in each state (on,offandstandbymode),ifapplicable. CAUTION Please heed the following cautions and instructions during servicing and inspection. Heed the cautions! Cautions which are delicate in particular for servicing are labeled on the cabinets, the parts and the chassis, etc. Be sure to heed these cautions and the cautions described in the handling instructions. Cautions concerning electric shock! (1) AnACvoltageisimpressedonthisset,soifyou touch internal metal parts when the set is energized, youmaygetanelectricshock.Avoidgettingan electricshock,byusinganisolatingtransformer and wearing gloves when servicing while the set is energized,orbyunpluggingthepowercordwhen replacing parts, for example. (2) Therearehighvoltagepartsinside.Handlewith extra care when the set is energized. Caution concerning disassembly and assembly! Through great care is taken when parts were manufacturedfromsheetmetal,theremaybeburrson theedgesofparts.Theburrscouldcauseinjuryiffingers are moved across them in some rare cases. Wear gloves toprotectyourhands. Use only designated parts! Thesetspartshavespecificsafetyproperties(fire resistance,voltageresistance,etc.).Besuretouseparts which have the same properties for replacement. The burrs have the same properties. In particular, for the importantsafetypartsthatareindicatedbythez mark on schematic diagrams and parts lists, be sure to use the designated parts. Be sure to mount parts and arrange the wires as they were originally placed! Forsafetyseasons,somepartsusetapes,tubesorother insulatingmaterials,andsomepartsaremountedaway from the surface of printed circuit boards. Care is also takenwiththepositionsofthewiresbyarrangingthem andusingclampstokeepthemawayfromheatingand highvoltageparts,sobesuretoseteverythingbackas itwasoriginallyplaced. Make a safety check after servicing! Check that all screws, parts and wires removed or disconnected when servicing have been put back in their original positions, check that no serviced parts have deteriorate the area around. Then make an insulation check on the external metal connectors and between the blades of the power plug, and otherwise check that safetyisensured. (Insulationcheckprocedure) Unplug the power cord from the power outlet, disconnect the antenna, plugs, etc., and on the power. Using a 500V insulation resistance tester, check that the insulation resistancevaluebetweentheinplugandtheexternally exposedmetalparts(antennaterminal,headphones terminal,inputterminal,etc.)is1Morgreater.Ifitis less, the set must be inspected and repaired. Manyoftheelectricandthestructuralpartsusedinthe sethavespecialsafetyproperties.Inmostcasesthese propertiesaredifficulttodistinguishbysight,andtheuse ofreplacementpartswithhigherratings(ratedpower andwithstandvoltage)doesnotnecessarilyguarantee thatsafetyperformancewillbepreserved.Partswith safetypropertiesareindicatedasshownbelowonthe wiring diagrams and the parts list in this service manual. Be sure to replace them with the parts which have the designated part number. (1)Schematicdiagrams .Indicatedbythez mark. (2)Partslists .Indicatedbythez mark. The use of parts other than the designated parts could cause electric shocks,firesorotherdangerous situations. CAUTION Concerning important safety parts 6 RadioFans.CN NOTE FOR SCHEMATIC DIAGRAM WARNING: Partsindicatedbythezmarkhavecriticalcharacteristics.UseONLYreplacementpartsrecommendedbythemanufacturer. CAUTION: Beforereturningthesettothecustomer,besuretocarryouteither(1)aleakagecurrentcheckor(2)alinetochassisresistancecheck.If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the set is defective. WARNING: DONOTreturnthesettothecustomerunlesstheproblemisidentifiedandremedied. NOTICE: ALLRESISTANCEVALUESINOHM.k=1,000OHM/M=1,000,000OHM ALLCAPACITANCEVALUESAREEXPRESSEDINMICROFARAD,UNLESSOTHERWISEINDICATED.PINDICATESMICRO-MICRO FARAD.EACHVOLTAGEANDCURRENTAREMEASUREDATNOSIGNALINPUTCONDITION.CIRCUITANDPARTSARESUBJECT TOCHANGEWITHOUTPRIORNOTICE. Parts indicated by nsp on this table cannot be supplied. When ordering a part, make a clear distinction between 1 and I (i) to avoid mis-supplying. A part ordered without specifying its part number can not be supplied. General-purpose Carbon Chip Resistors are not included are not included in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.) Parts indicated by the z mark have critical characteristics. Use ONLY replacement parts recommended by the manufacturer. General-purpose Carbon Film Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.) Part indicated by mark is not illustrated in the exploded view. WARNING: 1. 2. 3. 4. 5. 6. NOTE FOR PARTS LIST INSTRUCTIONS FOR HANDLING SEMI-CONDUCTORS AND OPTICAL UNIT Electrostaticbreakdownofthesemi-conductorsoropticalpickupmayoccurduetoapotentialdifferencecausedby electrostatic charge during unpacking or repair work. 1. GroundforHumanBody Besuretowearagroundingband(1M)thatisproperlygroundedtoremoveanystaticelectricitythatmaybe chargedonthebody. 2. GroundforWorkbench Besuretoplaceaconductivesheetorcopperplatewithpropergrounding(1M)ontheworkbenchorothersurface, wherethesemi-conductorsaretobeplaced.Becausethestaticelectricitychargeonclothingwillnotescapethrough thebodygroundingband,becarefultoavoidcontactingsemi-conductorswithyourclothing CBA Grounding Band Conductive Sheet or Copper Plate 1M 1M CBA 7 RadioFans.CN Personal notes: 8 RadioFans.CN nPower amplifier section Rated Output Power: both channels driven (CD IN SPEAKER OUT) 70 W + 70 W (8 /ohms, 20 Hz 20 kHz, T.H.D. 0.07 %) Dynamic power: 140 W + 140 W (4 /ohms, DIN, 1 kHz, T.H.D. 0.7 %) High frequency distortion: 0.01 % (Rated output: 3 dB), 8 /ohms, 1 kHz Output terminals: Speaker: A or B: 4 16 /ohms A + B: 8 16 /ohms Suited for headphones/stereo headphones Input Sensitivity / Input Impedance: P. DIRECT: 0.84 V / 47 k/kohms Gain: 29 dB nPre amplifier section Equalizer amplifier output: (REC OUT terminals) 150 mV Input Sensitivity/Input Impedance: PHONO (MM):2.5 mV/47 k/kohms PHONO (MC): 200 V/100 /ohms CD, TUNER, AUX, NETWORK, RECORDER: 125 mV/47 k/kohms (SOURCE DIRECT: Off) 125 mV/23 k/kohms (SOURCE DIRECT: On) RIAA Deviation: PHONO: 20 Hz 20 kHz 0.5 dB Maximum Input: PHONO (MM):130 mV/1 kHz PHONO (MC):10 mV/1 kHz Rated Output: PRE OUT: 0.84 V (Input CD 125 mV) nOverall performance S/N Ratio (A network): PHONO (MM): 89 dB (With input terminals short-circuited, 5 mV input signal) PHONO (MC): 74 dB (With input terminals short-circuited, 0.5 mV input signal) CD, TUNER, AUX, NETWORK, RECORDER: 108 dB (input terminals short-circuited) Tone control : BASS: 100 Hz 8 dB TREBLE: 10 kHz 8 dB nGeneral Power supply (for E2 model) : AC 230 V, 50/60 Hz Power supply (for E1C model) : AC 220 V, 50 Hz Power supply (for JP model) : AC 100 V, 50/60 Hz Power consumption : 295 W Power consumption during standby : 0.2 W Unit : in. (mm) Weight : 16.1 kg 374 414 2515964 18117 135 434 344 60 45 45 2515 TECHNICAL SPECIFICATIONS DIMENSION 9 RadioFans.CN FRONT PANEL ASSY Refer to DISASSEMBLY 1.FRONT PANEL ASSY and EXPLODED VIEW POWER SW.UNIT (Ref. No. of EXPLODED VIEW : 1-3) FRONT SW UNIT (Ref. No. of EXPLODED VIEW : 1-4) VOLUME UNIT (Ref. No. of EXPLODED VIEW : 1-5) POWER LED UNIT (Ref. No. of EXPLODED VIEW : 1-6) VOL SUB UNIT 1 (Ref. No. of EXPLODED VIEW : 1-7) VOL SUB UNIT 2 (Ref. No. of EXPLODED VIEW : 1-8) H/P UNIT (Ref. No. of EXPLODED VIEW : 1-9) FUNCTION SW UNIT (Ref. No. of EXPLODED VIEW : 2-3) REMOTE IN/OUT UNIT (Ref. No. of EXPLODED VIEW : 2-4) TONE UNIT (Ref. No. of EXPLODED VIEW : 2-5) POWER AMP PWB Refer to DISASSEMBLY 2. POWER AMP PWB and EXPLODED VIEW POWER AMP UNIT (Ref. No. of EXPLODED VIEW : 1-1) POWER TRANS Refer to DISASSEMBLY 6. POWER TRANS and EXPLODED VIEW POWER TRANS (Ref. No. of EXPLODED VIEW : 37) REC INPUT PWB Refer to DISASSEMBLY 5. REC INPUT UNIT and EXPLODED VIEW REC INPUT UNIT (Ref. No. of EXPLODED VIEW : 1-10) AC UNIT Refer to DISASSEMBLY and EXPLODED VIEW AC UNIT (Ref. No. of EXPLODED VIEW : 1-2) INPUT PWB Refer to DISASSEMBLY 3. INPUT PWB and EXPLODED VIEW INPUT UNIT (Ref. No. of EXPLODED VIEW : 2-2) U-COM PWB Refer to DISASSEMBLY 4. U-COM PWB and EXPLODED VIEW U-COM UNIT (Ref. No. of EXPLODED VIEW : 2-1) TOP COVER DISASSEMBLY Disassemble in order of the arrow in the following